Fix #7

src/classes/manager.rs

@@ -11,6 +11,7 @@ struct Manager {
     beat_count: i32,
     #[var]
     scenes: Array<Gd<PackedScene>>,
+    current_scene: Option<i32>,
     instanced_scenes: Vec<Gd<Node>>,
     base: Base<Node>
 }
@@ -22,6 +23,7 @@ impl INode for Manager {
             bgm: GString::from(""),
             beat_count: 0,
             scenes: Array::new(),
+            current_scene: None,
             instanced_scenes: Vec::new(),
             base,
         }
@@ -43,7 +45,23 @@ impl INode for Manager {
 impl Manager {
     #[func]
     fn set_scene(&mut self, number: i32) {
+        let current_scene = self.current_scene;
+
         let scene = self.instanced_scenes[number as usize].clone(); // Memory leak??? Idk
+        self.current_scene = Some(self.instanced_scenes[number as usize].get_index());
+        let node: Option<Gd<Node>>;
+        match current_scene {
+            Some(_) => {
+                node = self.base_mut().get_child(current_scene.unwrap());
+                match node {
+                    Some(value) => {
+                        value.upcast::<Node>().queue_free();
+                    }
+                    None => {}
+                };
+            }
+            None => {}
+        }
         self.base_mut().add_child(scene);
     }